20603696 has 10 divisors (see below), whose sum is σ = 39919692. Its totient is φ = 10301840.

The previous prime is 20603669. The next prime is 20603701. The reversal of 20603696 is 69630602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 643850 + ... + 643881.

Almost surely, 2^20603696 is an apocalyptic number.

It is an amenable number.

20603696 is a deficient number, since it is larger than the sum of its proper divisors (19315996).

20603696 is a wasteful number, since it uses less digits than its factorization.

20603696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287739 (or 1287733 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 20603696 is about 4539.1294319506. The cubic root of 20603696 is about 274.1458722086.

The spelling of 20603696 in words is "twenty million, six hundred three thousand, six hundred ninety-six".